JP4020684B2 - Ceiling hanger - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling hanger for suspending a ceiling behind a ceiling. More specifically, the present invention relates to a technique for absorbing vibration transmitted from the ceiling.
[0002]
[Prior art]
In either the conventional (wooden frame) method or the 2 × 4 (two-by-four / frame wall) method, various ceiling suspensions that support the ceiling base are used when the ceiling is constructed. Further, among various types of ceiling hangers, there is a configuration in which a damper member prevents vibration from being transmitted from an upper floor.
[0003]
For example, the ceiling hanging tool 10 shown in FIG. 4 is a metal bar-like member that extends vertically as a whole. The hanging tool 10 includes an upper attachment member 11 that is attached to a beam on the back of the ceiling, and the upper attachment member 12. The lower mounting member 12 is connected to the lower mounting member 12 by a cylindrical connecting member 15, and a field edge receiver and a field edge constituting the ceiling base are attached to the lower mounting member 12. Here, an anti-vibration rubber 14 is disposed inside the connecting member 15 as a damper member that absorbs vibrations that are transmitted from the upper floor to the lower floor via the ceiling. A coil spring 13 is mounted around the lower mounting member 12, and the upper end portion of the lower mounting member 12 is elastically pressed against the anti-vibration rubber 14 by the coil spring 13.
[0004]
5 (a) and 5 (b) is a plastic rod-like member that extends vertically as a whole, and also in this ceiling suspender 20, the upper mounting member 21 and the lower mounting member are attached. An anti-vibration rubber 23 as a damper member is disposed inside the connecting member 25 with the member 22.
[0005]
[Problems to be solved by the invention]
As described above, in the conventional ceiling suspenders 10 and 20, the anti-vibration rubber 14 as the damper member is provided inside the connecting members 15 and 25 between the upper mounting members 11 and 21 and the lower mounting members 12 and 22. Although the conventional anti-vibration rubbers 14 and 23 are made of a single rubber, the frequency band of vibration that can be absorbed is limited. However, since vibrations transmitted from the upper floor contain various frequency components, there is a problem that the conventional ceiling suspenders 10 and 20 cannot absorb vibrations efficiently.
[0006]
In view of the above-described problems, an object of the present invention is to propose a ceiling hanger that can absorb vibrations in a wide frequency band.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention, the upper mounting member attached to the ceiling beams, and lower mounting member for supporting the ceiling foundation under end portion, the upper mounting member and the lower mounting member A ceiling member provided with a damper member between the connecting member and the lower mounting member , wherein the lower mounting member includes a round bar portion extending upward. The connecting member has a structure in which a lower cap in which a through hole through which the round bar portion is passed is formed is fixed to a lower end side, and the damper member is a lower surface of a flange portion formed in the round bar portion And the upper surface of the lower cap is disposed in a state where the round bar portion penetrates, and the damper member is disposed with a plurality of anti-vibration rubbers having different vibration absorption bands stacked one above the other. Anti-vibration rubber located on the lower side among multiple anti-vibration rubbers Is formed cylindrical portion with a smaller outer diameter than the upper portion projecting downward from the through hole of-proof vibration rubber, the cylindrical portion is the round bar portion, characterized in that it penetrates.
[0008]
The “beam” in the specification of the present application means a beam in the conventional construction method and also includes a floor joist in the 2 × 4 publication. In addition, the “ceiling foundation” in the specification of the present application means a field edge receiving in the conventional construction method and includes a field edge in the 2 × 4 publication.
[0009]
In the hanging device for ceiling according to the present invention, the damper member used in the connecting portion between the upper mounting member attached to the beam behind the ceiling and the lower mounting member that supports the ceiling base has a plurality of different vibration absorption bands. Since it has anti-vibration rubber, it absorbs such vibrations efficiently even when the frequency band of vibrations transmitted from the upper floor is wide. Therefore, since vibrations are not transmitted from the upper floor, a comfortable room can be constructed on the lower floor.
[0010]
In the present invention, the plurality of anti-vibration rubbers have different vibration absorption bands due to different materials, for example. The plurality of anti-vibration rubbers may have different vibration absorption bands due to different hardnesses.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is an explanatory diagram illustrating an example of a usage state of a ceiling hanger to which the present invention is applied. FIG. 2 is a partial cross-sectional view of the ceiling hanger shown in FIG. FIG. 3 is a perspective view of a damper member used in the ceiling hanger shown in FIG.
[0014]
As shown in FIG. 1, the ceiling hanger 1 is a building member for suspending the ceiling 4, for example, a plurality of beams 3 made of square members that extend horizontally and support the floor 2 on the upper floor from below the floor, Plural pieces are attached at a predetermined interval between a plurality of field receivers 5 that extend horizontally and support the ceiling 4 on the back side of the ceiling. In FIG. 1, the ceiling is under the floor 2 of the upper floor. However, when the ceiling is an attic, the ceiling hanging tool 1 hangs from the attic and suspends the ceiling 4.
[0015]
As shown in FIG. 2, the ceiling hanger 1 has a structure in which a plurality of parts are connected vertically so as to extend vertically as a whole, and is an upper mounting member fixed to the beam 3 under the floor on the upper floor. 6, a lower mounting member 7 connected to the upper mounting member 6 and fixed to the edge receiver 5 at the back of the ceiling, and a connecting member 9 for connecting the upper mounting member 6 and the lower mounting member 7 have. In the ceiling hanger 1, a damper member 8 described later is disposed inside the connecting member 9.
[0016]
The upper mounting member 6 includes an upper mounting plate portion 61 that is mounted on the side surface of the beam 3 and a round bar portion 62 that extends downward from the lower end portion of the upper mounting plate portion 61. The upper end side of the rod part 62 is crushed in the radial direction. The upper mounting plate portion 61 has, for example, three vertical through holes 61a for fixing nails and bolts for attaching the upper mounting plate portion 61 to the beam 3. The lower end side of the round bar portion 62 is a bolt portion 63.
[0017]
The connecting member 9 includes a cylindrical body 94 extending vertically and an annular lower cap 96 welded to the lower end opening of the cylindrical body 94. The upper end portion of the cylindrical body 94 is a small diameter portion, and the inside thereof is a screw hole 95a for screwing the bolt portion 63 of the upper mounting member 6. The lower cap 96 is formed with a through hole 96 a for passing the round bar portion 72 of the lower mounting member 7.
[0018]
The lower mounting member 7 includes a round bar portion 72 protruding from the inside of the cylindrical body 94 through the through hole 96a of the lower cap 96 of the connecting member 9, and a lower mounting plate portion extending downward from the round bar portion 72. 73. The lower mounting plate portion 73 has a shape in which the lower end side of the round bar constituting the round bar portion 72 is crushed in the radial direction. Through holes 73a for attaching nails and bolts for attachment are formed at, for example, two places. A flange portion 78 is formed on the upper end portion of the round bar portion 72 with a flat rivet or the like.
[0019]
Inside the cylindrical body 94, the damper member 8 is disposed between the flange portion 78 of the round bar portion 72 and the lower cap 96.
[0020]
2 and 3, the damper member 8 used in the ceiling hanger 1 of the present embodiment includes an annular first anti-vibration rubber 81 provided with a through hole 810 and a second same provided with a through hole 820. The anti-vibration rubber 82 is vertically stacked. Of these anti-vibration rubbers 81, 82, the lower-side anti-vibration rubber 82 includes a cylindrical portion 821 protruding downward, and the cylindrical portion 821 protrudes downward from the opening 96 a of the lower cap 96. It is in.
[0021]
The round bar portion 72 is passed through the through holes 810 and 820 of the first vibration isolation rubber 81 and the second vibration isolation rubber 82 arranged in this way and the cylindrical portion 821 of the second vibration isolation rubber 82. The round bar portion 72 is not in direct contact with the cylindrical body 94 or the lower cap 96.
[0022]
Here, the first anti-vibration rubber 81 located on the upper side is made of, for example, butyl rubber (IIR) having low hardness, and the second anti-vibration rubber 82 located on the lower side is made of butyl rubber having high hardness. Has been. Accordingly, the first anti-vibration rubber 81 and the second anti-vibration rubber 82 have different damper characteristics (vibration absorption bands).
[0023]
When manufacturing the ceiling hanger 1 having such a configuration, for example, the bolt member 63 of the upper mounting member 6 is screwed into the screw hole 95a on the upper end side of the cylindrical body 94 of the connecting member 9, thereby connecting the connecting member 9. 9 and the upper mounting member 6 are connected.
[0024]
On the other hand, after attaching the damper member 8 and the lower cap 96 to the round bar portion 72 of the lower mounting member 7, a flange portion 78 is formed with a flat rivet, and in this state, the upper end of the round bar portion 72 is formed. After the side is inserted inside the cylinder 94, the lower cap 96 is welded to the lower end opening of the cylinder 94.
[0025]
As a result, the connecting member 9 and the lower attachment member 7 are connected to each other, and the ceiling hanger 1 is completed.
[0026]
(how to use)
In the ceiling suspension 1 configured as described above, the upper mounting plate portion 61 of the upper mounting member 6 is fixed to the beam 3, and the field receiver 5 is fixed to the lower mounting plate portion 73 of the lower mounting member 7. After constructing the ceiling foundation, the ceiling 4 is constructed. At this time, if the screwing depth of the bolt portion 63 of the upper mounting member 6 with respect to the screw hole 95a of the connecting member 9 is adjusted, the distance between the upper mounting plate portion 61 and the lower mounting plate portion 73 can be adjusted.
[0027]
Further, since the connecting member 9 and the round bar portion 72 can be rotated, if the connecting member 9 is rotated even after construction, the screwing depth of the bolt portion 63 of the upper mounting member 6 with respect to the screw hole 95a of the connecting member 9 is increased. Can be adjusted. Accordingly, it is possible to finely adjust the height position of the field edge receiver 5 after the construction.
[0028]
(Operation and effect of this form)
In the state in which the ceiling 4 is constructed using the ceiling suspension 1 having such a configuration, the connecting member 9 and the lower mounting are provided inside the connecting member 9 that connects the upper mounting member 6 and the lower mounting member 7. The damper member 8 is sandwiched between the members 7. Therefore, vibration transmitted from the upper floor to the upper mounting member 6 via the beam 3 is transmitted to the connecting member 9, but is absorbed by the damper member 8, and the lower mounting member 7, the field edge receiver 5, and the ceiling 4 is not transmitted.
[0029]
Moreover, even when various frequency components are included in the vibration transmitted from the upper floor, the damper member 8 includes the first vibration isolation rubber 81 and the second vibration isolation rubber 82 having different vibration absorption bands. Is used to absorb vibrations transmitted from the upper floor efficiently. Therefore, a comfortable room can be constructed downstairs.
[0030]
(Other embodiments)
In the above embodiment, butyl rubber having different hardness is used as the first anti-vibration rubber 81 and the second anti-vibration rubber 82. For example, natural rubber (NR) is used as the first anti-vibration rubber 81. Since the damper characteristic (vibration absorption band) is also different when ethylene-propylene-diene-methylene rubber (EPDM) is used as the second anti-vibration rubber 82 located on the lower side, the vibration absorption capability of the damper member 8 is enhanced. be able to.
[0031]
Moreover, in the said form, although 2 types of vibration isolator rubber was used for the damper member 8, you may use 3 or more anti-vibration rubbers in piles.
[0032]
【The invention's effect】
As described above, in the ceiling hanger of the present invention, the damper member used in the connecting portion between the upper mounting member attached to the beam behind the ceiling and the lower mounting member that supports the ceiling base is vibrated. Since a plurality of anti-vibration rubbers having different absorption bands are provided, even when the frequency band of vibration transmitted from the upper floor is wide, such vibration is efficiently absorbed. Therefore, since vibrations are not transmitted from the upper floor, a comfortable room can be constructed on the lower floor.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an example of a usage state of a ceiling hanger to which the present invention is applied.
FIG. 2 is a partial cross-sectional view of the ceiling hanger shown in FIG.
3 is a perspective view of a damper member used in the ceiling hanger shown in FIG. 2. FIG.
FIG. 4 is a partial sectional view showing a conventional ceiling hanger.
FIGS. 5A and 5B are a front view and a side view, respectively, showing another conventional ceiling hanger.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ceiling suspension 2 Upper floor 3 Beam 4 Ceiling 5 Field edge receiver 6 Upper attachment member 7 Lower attachment member 8 Damper member 9 Connecting member 61 Upper attachment plate part 62 Round bar part 63 Bolt part 72 Round bar part 73 Lower mounting plate portion 94 Cylindrical body 96 Lower cap 81 First vibration isolation rubber 82 Second vibration isolation rubber

Claims (2)

Has an upper mounting member attached to the ceiling beams, and lower mounting member for supporting the ceiling foundation under end portion, and a connecting member for connecting the lower mounting member and the upper mounting member, the connecting In the ceiling hanger provided with a damper member between the member and the lower mounting member ,
The lower mounting member includes a round bar portion extending upward,
The connecting member includes a structure in which a lower cap formed with a through-hole through which the round bar portion passes is fixed to a lower end side,
The damper member is disposed in a state where the round bar portion penetrates between a lower surface of a flange portion formed in the round bar portion and an upper surface of the lower cap,
In the damper member, a plurality of vibration isolating rubbers having different vibration absorption bands are arranged one above the other, and among the plurality of vibration isolating rubbers, the vibration isolating rubber located on the lower side is provided with the vibration isolating rubber. A ceiling hanging tool characterized in that a cylindrical portion projecting downward from the through hole is formed with an outer diameter dimension smaller than that of the upper portion, and the round bar portion passes through the cylindrical portion .   The ceiling suspension device according to claim 1, wherein the plurality of vibration-proof rubbers are different in material or hardness.

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